Black Diamond, WA Severe Weather Alertstar_ratehome

...FLOOD WARNING IN EFFECT UNTIL 4 AM PST THURSDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...In the foothill areas of northwest and west central
Washington, including the following counties, in northwest
Washington, Skagit and Whatcom. In west central Washington, King
and Snohomish.

* WHEN...Until 400 AM PST Thursday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring. Numerous roads
remain closed due to flooding. Streams continue to rise due to
excess runoff from earlier rainfall.

* ADDITIONAL DETAILS...
- At 1237 PM PST, gauge reports indicated heavy rain. Flooding
is already occurring in the warned area. Between 1 and 3
inches of rain have fallen.
- Additional rainfall amounts of 4 to 6 inches are possible in
the warned area.
- Some locations that will experience flooding include...
Everett, Sedro-Woolley, North Bend, Gold Bar, Carnation,
Darrington, Concrete, Index, Stevens Pass, Snoqualmie Pass,
Deming, Sammamish, Monroe, Snoqualmie, Enumclaw, Duvall,
Sultan, Granite Falls, Skykomish and Rockport.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

&&

...FLOOD WARNING IN EFFECT UNTIL 1215 AM PST THURSDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of west central Washington, including the
following counties, King and Snohomish.

* WHEN...Until 1215 AM PST Thursday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
- At 1208 PM PST, gauge reports indicated heavy rain. Flooding
is ongoing or expected to begin shortly in South Fork
Skykomish River. Between 6 and 10 inches of rain have fallen.
- Additional rainfall amounts of 3 to 5 inches are possible in
the warned area. Flooding is occurring along the South Fork
Skykomish River.
- Some locations that will experience flooding include...
Skykomish and Baring.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Move to higher ground now. Act quickly to protect your life.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

&&

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...White River at R Street Bridge.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
- At 9:45 AM PST Wednesday the flow was 9,200.0 cfs.
- Flood flow is 7,500.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 9:45 AM PST Wednesday was 9,200.0 cfs.
- Forecast...The river is expected to rise to a crest of
9,299.1 cfs tomorrow afternoon.
- Flood History...This crest compares to a previous crest of
8,080.0 cfs on 02/06/2020.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY MORNING...

* WHAT...Moderate flooding is occurring and major flooding is
forecast.

* WHERE...Snoqualmie River near Snoqualmie Falls.

* WHEN...Until Friday morning.

* IMPACTS...At 55,000.0 cfs, the Snoqualmie River will cause major
flooding from the town of Snoqualmie downstream through Fall
City...inundating most of the farm land in the flood plain...some
residential areas...and many roads. Flood waters will be deep and
swift in some areas. Flooding will occur all along the river
including headwaters...tributaries...and other streams within and
near the Snoqualmie River Basin. This river level on the
Snoqualmie corresponds roughly to a phase 4 flood in the King
County flood system.

* ADDITIONAL DETAILS...
- At 10:00 AM PST Wednesday the flow was 34,600.0 cfs.
- Flood flow is 20,000.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 10:00 AM PST Wednesday was 34,600.0 cfs.
- Forecast...The river will rise to 65,137.5 cfs late this
evening. It will then fall late tonight. It will rise to
62,723.2 cfs late tomorrow morning. It will then fall below
flood stage late tomorrow evening.
- Flood History...This crest compares to a previous crest of
61,000.0 cfs on 11/23/1959.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SATURDAY MORNING...

* WHAT...Moderate flooding is occurring and major flooding is
forecast.

* WHERE...Snoqualmie River near Carnation.

* WHEN...Until early Saturday morning.

* IMPACTS...At 60.0 feet, the Snoqualmie River will cause severe
near record flooding from Fall City downstream through Carnation
and Duvall. Deep and swift flood waters will inundate many farms...
residential areas...and roads.  Flooding will occur all along the
river including headwaters...tributaries...and other streams
within and near the Snoqualmie River Basin.

* ADDITIONAL DETAILS...
- At 10:15 AM PST Wednesday the stage was 56.2 feet.
- Flood stage is 54.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:15 AM PST Wednesday was 57.9 feet.
- Forecast...The river is expected to rise to a crest of 60.5
feet late tomorrow morning. It will then fall below flood
stage early Friday afternoon.
- Flood History...This crest compares to a previous crest of
60.3 feet on 02/09/1996.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT FROM THIS MORNING TO LATE SATURDAY
EVENING...

* WHAT...Minor flooding is occurring and major flooding is forecast.

* WHERE...Cedar River near Landsburg.

* WHEN...From this morning to late Saturday evening.

* IMPACTS...At 7.5 feet, the Cedar River will cause severe flooding
from Landsburg downstream through Maplewood. Deep and swift flood
waters will inundate many roads and some residential areas,
especially in Maple Valley.  Flooding will occur all along the
river including headwaters, tributaries, and other streams within
and near the Cedar River Basin.  A stage of 7.5 feet on the Cedar
River corresponds to a phase 4 flood in the King County flood
system.

* ADDITIONAL DETAILS...
- At 9:00 AM PST Wednesday the stage was 6.0 feet.
- Flood stage is 5.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM PST Wednesday was 6.0 feet.
- Forecast...The river is expected to rise to a crest of 9.8
feet late tonight.
- Flood History...This crest compares to a previous crest of
9.7 feet on 03/10/1916.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING IN EFFECT FROM THIS MORNING UNTIL FURTHER NOTICE...

* WHAT...Major flooding is forecast.

* WHERE...Cedar River at Renton.

* WHEN...From this morning until further notice.

* IMPACTS...At 16.0 feet, the Cedar River will cause major flooding
in Renton, especially at the Renton Airport. Flooding will occur
all along the river including headwaters, tributaries, and other
streams within and near the Cedar River Basin.

* ADDITIONAL DETAILS...
- At 7:15 AM PST the river was at 12.7 feet.
- Flood stage is 13.0 feet.
- Forecast...The river is expected to rise above flood stage
late this morning and continue rising to a crest of 16.3 feet
late tomorrow morning.
- Flood History...This crest compares to a previous crest of
16.3 feet on 01/08/2009.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING...

* WHAT...Major flooding is forecast.

* WHERE...Tolt River above Carnation.

* WHEN...Until late tomorrow evening.

* IMPACTS...At 8,500.0 cfs, the Tolt River will cause major
flooding. Deep and quick flood waters will cover roads and
driveways...cutting off access to many homes. Levees may overtop
and channel changes may occur.  Flooding will occur all along the
river including headwaters...tributaries...and other streams
within and near the Tolt River Basin.  This river level on the
Tolt corresponds to a phase 4 flood in the King County flood
system.

* ADDITIONAL DETAILS...
- At 5:15 AM PST Wednesday the flow was 3,720.0 cfs.
- Flood flow is 5,000.0 cfs.
- Forecast...The river is expected to rise to a crest of
9,752.0 cfs late this evening. It will then fall below flood
stage early tomorrow afternoon.
- Flood History...This crest compares to a previous crest of
9,740.0 cfs on 02/01/2020.
- http://www.weather.gov/safety/flood

&&

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Green River near Auburn.

* WHEN...Until further notice.

* IMPACTS...At 10,000.0 cfs, the Green River will flood low areas of
the middle Green River valley with water over SE Green Valley Rd.
Some flooding is possible at a few low spots along the banks of
the Green River in Auburn, including near Issac Evans Park in
lower Mill Creek basin between Auburn and Kent due to backwater. A
flow of 9000 cfs feet on the Green River corresponds to a phase 3
flood in the King County flood system.

* ADDITIONAL DETAILS...
- At 5:45 AM PST Wednesday the flow was 11,000.0 cfs.
- Flood flow is 9,000.0 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 5:45 AM PST Wednesday was 12,800.0 cfs.
- Forecast...The river is expected to rise to a crest of
10,299.0 cfs late tomorrow evening.
- Flood History...This crest compares to a previous crest of
11,000.0 cfs on 02/25/1986.
- http://www.weather.gov/safety/flood

&&

...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of northwest and west central Washington,
including the following counties, in northwest Washington,
Clallam, Grays Harbor, Island, Jefferson, Kitsap, Mason, San Juan,
Skagit and Whatcom. In west central Washington, King, Lewis,
Pierce, Snohomish and Thurston.

* WHEN...Through Friday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Storm drains
and ditches may become clogged with debris. Area creeks and
streams are running high and could flood with more heavy rain.

* ADDITIONAL DETAILS...
- An atmospheric river will continue to impact the area through
much of the week and bring periods moderate to heavy rain to
the region. Sharp rises are occurring on area rivers,
especially those flowing off the Olympics and Cascades.

Urban and small stream flooding is possible for areas with
poor drainage.

Saturated soils will bring increased potential for landslides
and debris flows on burn scars.

- Http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

...HEAVY RAINFALL THIS WEEK WILL LEAD TO AN INCREASED THREAT OF
LANDSLIDES IN WESTERN WASHINGTON...

Rainfall of up to 8 to 10 inches over the past several days has
increased antecedent soil moisture to high levels across western
Washington. Additional heavy rainfall of 1 to 4 inches across the
lowlands and 4 to 10 inches over the Olympics and Cascades is
expected through late Wednesday. Wet and unsettled conditions are
also favored to continue through the rest of the week. This amount of
rain will put extra pressure on soil instability, leading to an
increased threat of landslides and debris flows, especially from
recent burned areas.

A mudslide was reported along I-90 Monday evening near North Bend,
causing highway closures and extensive delays. More landslides are
possible.

Areas most susceptible to landslides debris flows under these
conditions are steep coastal bluffs, other steep hillsides or
road cuts, and recent burned areas. A diminishing threat of
landslides and debris flows will continue for several days after
the rain ends.

For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.

For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn